gcc/testsuite/gcc.target/i386/pr55981.c

   1 /* { dg-do compile  { target { ! ia32 } } } */
   2 /* { dg-options "-O2" } */
   3
   4 volatile int a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p;
   5
   6 volatile long long y;
   7
   8 void
   9 test ()
  10 {
  11   int a_ = a;
  12   int b_ = b;
  13   int c_ = c;
  14   int d_ = d;
  15   int e_ = e;
  16   int f_ = f;
  17   int g_ = g;
  18   int h_ = h;
  19   int i_ = i;
  20   int j_ = j;
  21   int k_ = k;
  22   int l_ = l;
  23   int m_ = m;
  24   int n_ = n;
  25   int o_ = o;
  26   int p_ = p;
  27
  28   int z;
  29
  30   for (z = 0; z < 1000; z++)
  31     {
  32       __atomic_store_n (&y, 0x100000002ll, __ATOMIC_SEQ_CST);
  33       __atomic_store_n (&y, 0x300000004ll, __ATOMIC_SEQ_CST);
  34     }
  35
  36   a = a_;
  37   b = b_;
  38   c = c_;
  39   d = d_;
  40   e = e_;
  41   f = f_;
  42   g = g_;
  43   h = h_;
  44   i = i_;
  45   j = j_;
  46   k = k_;
  47   l = l_;
  48   m = m_;
  49   n = n_;
  50   o = o_;
  51   p = p_;
  52 }
  53
  54 /* { dg-final { scan-assembler-times "movabs" 2 } } */